ReadME Data from: Conith, AJ, Hope, SA, Chhouk, BH, Craig Albertson, R. Weak genetic signal for phenotypic integration implicates developmental processes as major regulators of trait covariation. Mol Ecol. 2021; 30: 464– 480. https://doi.org/10.1111/mec.15748 For correspondence contact: Andrew J. Conith and R. Craig Albertson, Biology Department, University of Massachusetts Amherst, Amherst, MA, USA. Email: ajconith@bio.umass.edu (A. J. C.); albertson@bio.umass.edu (R. C. A.) File navigation and contents. .Corrs - Folder containing all the data associated with the correlation analyses >PLSCorrelations_Sy.R - R Script to perform all partial least squares correlations on the symmetric landmark configurations >RDA - Folder contains r-data files with the landmark configurations pre-loaded. Can be accessed by double clicking and they will automatically load into your R environment ready for use with the PLSCorrelations_Sy.R script. >AtriumSymmetry.rda >CleithrumSymmetry.rda >MandibleSymmetry.rda >VentricleSymmetry.rda >zHeartPCs.csv - Principal component scores for all hybrids over all traits .GMM - Folder containing all the data associated with the geometric morphometric analyses >Atrium >Atri_20190829.tps - File containing all the landmark coordinate data for the atrium >AtriumAnalysisSymmA.R - R script to perform all atrium morphometric analyses >curveslide.csv - File to tell R which landmark coordinates within Atri_20190829.tps should be treated as sliding semi-landmarks - File is called within the R script AtriumAnalysisSymmA.R >Mandible >Landmark-M.R - R script to perform all mandible morphometric analyses >M_20190929.tps - File containing all the landmark coordinate data for the mandible >PectGird >ClePilotF.tps - File containing all the landmark coordinate data for the pectoral girdle >Landmark-Cle.R - R script to perform all pectoral girdle morphometric analyses >Ventricle >curveslide.csv - File to tell R which landmark coordinates within Vent_20190820.tps should be treated as sliding semi-landmarks - File is called within the R script VentricleAnalysisSymmA.R >Vent_20190820.tps - File containing all the landmark coordinate data for the ventricle >VentricleAnalysisSymmA.R - R script to perform all ventricle morphometric analyses .Map - Folder containing all the data associated with the genetic mapping analyses >Atrium.R - R script to perform all atrium QTL analyses >AugCrossF5_AtVtSym.csv - Excel file containing the genetic map and the associated trait data for all hybrids >Cleithrum.R - R script to perform all pectoral girdle QTL analyses >Mandible.R - R script to perform all mandible QTL analyses >Ventricle.R - R script to perform all ventricle QTL analyses